ZY-22/SN4-DP is a fixed-speed air-source pool heat pump offered in either a heating configuration or a cooling configuration, selected when ordering. A single unit does not switch between heating and cooling. The heating version is rated at 22 kW under A20/15°C and pool water 26→28°C; the cooling version is rated at 12 kW under A35°C and pool water 30→28°C. Contact ZHIEN for selection by pool volume, climate and operating schedule.
